weird tighness when I sit... is this normal?

If I'm sitting - hunched over a desk, or slumped on the couch for too long, I get this odd tightness directly under my ribs.

The only thing that relieves the discomfort is if I lay down - or sit up very straight, poke out my belly, and roll my shoulders back.

Is there a reason why this is happening?

Any advice? (besides don't sit slumped over...)

Re: weird tighness when I sit... is this normal?

I've noticed that too.. not sure why it happens but it is normal